angles black and white buildings city corners glass high rise linear modern sharp sharp corners Singapore straight up and down walls windows abstract angled appearance architectural architecture building contemporary contrast contrasting distinctive edged edges elements exterior external framed frames geometric geometric-shapes gray grey height high high-rise light lines patterned patterns perspectives sharp-cornered sharp-corners straight-up-and-down surface surfaces textured textures views wall artistic backdrop background blended bright color colored colors colour coloured colours decorative design details geometrical interconnected intermeshed interwoven mandala pointed points radiating rounded shapes square style texture tile vibrant wallpaper circles circular kaleidoscopic patterns rays black blue brilliant colorful colourful decoration detailed detailed patterns image images white